Granted Patent
Utility
US 4,450,301 · App. 06/435,848
Process for converting methanol to formaldehyde
Inventors:
William P. McMillan, Charles C. Hobbs, Jr., H. Robert Gerberich, Michael L. Junker
Patented Case
View Patent ↗
Granted: May 22, 1984
Filed: Oct 21, 1982
Inventors
William P. McMillan
Charles C. Hobbs, Jr.
H. Robert Gerberich
Michael L. Junker
Assignee (at issue)
Celanese GmbH
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.